Hamburg, NJ 07419 Frost Dates
07419, near Hamburg, NJ: the frost window
Around 05/01 is the usual last spring frost, about 246 days away. Fall's first freeze usually shows up around 10/12, roughly 164 days after the last spring frost.
Hamburg sits in USDA Zone 6b (-5 to 0°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Hamburg's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/18 and only about 1 year in 10 sees frost after that.
Hamburg against the rest of the dataset
About 164 days separate Hamburg's last and first frost, putting it 30,942 of 40,283 ZIP codes nationally. Within NJ, it ranks 895 of 906.
Learn more
Two guides worth reading on 07419: the frost range, on how to read the range around Hamburg's dates instead of trusting one, and local microclimates, on what one yard in Hamburg can differ from the 07419 normal.